The ecology of the Apalachicola The ecology of the Apalachicola Bay system : an estuarine profile ecologyofapalach00livi Year: [1984] Table 12. (Concluded.) Average 1973-74 values Zooplankton groups East (1 Stat ^ Bay ion) t Apalachicola Bay (6 stations) Coast (1 Stat ' al ion) Chaetognaths 0 27 52 Polychaete larvae 1 + 92 10 Fish eggs &; larvae 1 + 92 10 Other zooplankton 2 35 16 (Table 13). Although direct correlations were lacking, there was a strong positive relationship between salinity and diversity. Temperature and salinitv had
The ecology of the Apalachicola The ecology of the Apalachicola Bay system : an estuarine profile ecologyofapalach00livi Year: [1984] Table 12. (Concluded.) Average 1973-74 values Zooplankton groups East (1 Stat ^ Bay ion) t Apalachicola Bay (6 stations) Coast (1 Stat ' al ion) Chaetognaths 0 27 52 Polychaete larvae 1 + 92 10 Fish eggs &; larvae 1 + 92 10 Other zooplankton 2 35 16 (Table 13). Although direct correlations were lacking, there was a strong positive relationship between salinity and diversity. Temperature and salinitv had no significant effect (at the level) on the various dependent variables in East Bay or coastal areas. Coastal areas are physically stable when compared to the estuary; salinity varies little throughout the year in the offshore systems. In such areas, zooplankton standing crop is generally higher than that in East Bay. Hiversitv tends to increase because Acartia averages The general lack of definitive statistical relationships between individual zooplankton indicators or indices and dominant physical variables such as temperature and salinity reflects the considerable diel, seasonal, and annual variability in the distribution of zooDlankton in the estuary. Other factors ^iTQ. almost certainly important to such distribution during various periods o^^ the year. Peaks o^ zooplankton biomass tend to be associated in some way with ohytODlankton peaks, especially in Apalachicola Bay and coastal areas (Figure 2fi). Predator-orev relationshios may play an important role in zooplankton distribution and abundance throughout the year. Such trends are obviously affected by habitat differences, however. The relatively small East Bav is characterized by low salinity and high sedimentation and turbidity. Salinitv changes, derived largely from river flow and storm-water runoff, are raoid. Most of the oeaks of zooplankton abundance correspond to salinity increases in this area. The copepod
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